root / branches / Mobile_Compatible_Hito_1 / libFMap / src / es / prodevelop / gvsig / mobile / fmap / viewport / Extent.java @ 21606
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* cresques@gmail.com
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*/
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/************************************************
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* *
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* Modfied By: *
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* Prodevelop Integraci?n de Tecnolog?as SL *
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* Conde Salvatierra de ?lava , 34-10 *
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* 46004 Valencia *
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* Spain *
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* *
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* +34 963 510 612 *
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* +34 963 510 968 *
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* gis@prodevelop.es *
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* http://www.prodevelop.es *
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* *
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* gvSIG Mobile Team 2006 *
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* *
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************************************************/
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package es.prodevelop.gvsig.mobile.fmap.viewport; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.text.DecimalFormat; |
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/**
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* Clase que getiona el extent de una imagen
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*
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* @author Luis W.Sevilla (sevilla_lui@gva.es)
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*/
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public class Extent { |
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Point2D min = null; |
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Point2D max = null; |
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/**
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* Constructor sin par?metros
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*/
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public Extent() {
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min = new Point2D.Double(999999999.0, 999999999.0); |
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max = new Point2D.Double(-999999999.0, -999999999.0); |
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} |
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/**
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* Constructor
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* @param pt1 punto que representa la esquina superior izquierda
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* @param pt2 punto que representa la esquina inferior derecha
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*/
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public Extent(Point2D pt1, Point2D pt2) { |
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newExtent(pt1.getX(), pt1.getY(), pt2.getX(), pt2.getY()); |
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} |
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/**
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* Contructor
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* @param x1 punto que representa la coordenada X de la esquina superior izquierda
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* @param y1 punto que representa la coordenada Y de la esquina superior izquierda
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* @param x2 punto que representa la coordenada X de la esquina inferior derecha
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* @param y2 punto que representa la coordenada Y de la esquina inferior derecha
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*/
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public Extent(double x1, double y1, double x2, double y2) { |
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newExtent(x1, y1, x2, y2); |
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} |
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/**
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* Constructor
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* @param r Rectangulo 2D
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*/
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public Extent(Rectangle2D r) { |
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newExtent(r.getX(), r.getY(), r.getX() + r.getWidth(), |
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r.getY() + r.getHeight()); |
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} |
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/**
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* Constructor de copia
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* @param ext Objeto Extent
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*/
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public Extent(Extent ext) {
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newExtent(ext.minX(), ext.minY(), ext.maxX(), ext.maxY()); |
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} |
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/**
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* Crea un objeto extent identico y lo retorna
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* @return Objeto extent
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*/
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public Object clone() { |
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Extent e = (Extent) clone(); |
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e.min = (Point2D) min.clone();
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e.max = (Point2D) max.clone();
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return e;
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} |
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private void newExtent(double x1, double y1, double x2, double y2) { |
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double[] e = { x1, y1, x2, y2 }; |
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min = new Point2D.Double(Math.min(x1, x2), Math.min(y1, y2)); |
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max = new Point2D.Double(Math.max(x1, x2), Math.max(y1, y2)); |
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} |
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/**
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* Obtiene la coordenada X m?nima
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* @return valor de la coordenada X m?nima
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*/
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public double minX() { |
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return min.getX();
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} |
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/**
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* Obtiene la coordenada Y m?nima
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* @return valor de la coordenada X m?nima
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*/
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public double minY() { |
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return min.getY();
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} |
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/**
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* Obtiene la coordenada X m?xima
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* @return valor de la coordenada X m?xima
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*/
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public double maxX() { |
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return max.getX();
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} |
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/**
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* Obtiene la coordenada Y m?xima
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* @return valor de la coordenada Y m?xima
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*/
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public double maxY() { |
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return max.getY();
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} |
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/**
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* Obtiene el punto m?nimo
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* @return m?nimo
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*/
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public Point2D getMin() { |
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return min;
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} |
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/**
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* Obtiene el punto m?ximo
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* @return m?ximo
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*/
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public Point2D getMax() { |
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return max;
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} |
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public boolean isAt(Point2D pt) { |
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if (pt.getX() < minX()) {
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return false; |
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} |
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if (pt.getX() > maxX()) {
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return false; |
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} |
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if (pt.getY() < minY()) {
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return false; |
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} |
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if (pt.getY() > maxY()) {
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return false; |
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} |
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return true; |
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} |
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public double width() { |
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return Math.abs(maxX() - minX()); |
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} |
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public double height() { |
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return Math.abs(maxY() - minY()); |
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} |
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/**
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* Verifica un punto, y modifica el extent si no est? incluido
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*/
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public void add(Point2D pt) { |
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if (pt == null) { |
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return;
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} |
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min.setLocation(Math.min(pt.getX(), minX()), Math.min(pt.getY(), minY())); |
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max.setLocation(Math.max(pt.getX(), maxX()), Math.max(pt.getY(), maxY())); |
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} |
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public void add(Extent ext) { |
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if (ext == null) { |
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return;
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} |
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min.setLocation(Math.min(ext.minX(), minX()),
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Math.min(ext.minY(), minY()));
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max.setLocation(Math.max(ext.maxX(), maxX()),
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Math.max(ext.maxY(), maxY()));
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} |
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/**
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* Obtiene la escala
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* @param width Ancho
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* @param height Alto
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* @return
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*/
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public double[] getScale(int width, int height) { |
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return getScale((double) width, (double) height); |
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} |
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public double[] getScale(double width, double height) { |
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double[] scale = new double[2]; |
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scale[0] = ((float) width) / width(); |
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scale[1] = ((float) height) / height(); |
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return scale;
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} |
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public Rectangle2D toRectangle2D() { |
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return new Rectangle2D.Double(minX(), minY(), width(), height()); |
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} |
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public String toString() { |
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DecimalFormat format = new DecimalFormat("####.000"); |
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return "Extent: (" + format.format(minX()) + "," + |
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format.format(minY()) + "), (" + format.format(maxX()) + "," + |
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format.format(maxY()) + ")";
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} |
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public interface Has { |
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public Extent getExtent();
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} |
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} |